Vol. 11, Special Issue 2 (2022)

Author(s):
Premlata Meena, PG Shah, Kapil Atmaram Chobhe, Mamta, Ajit Kumar Meena, Rajendra Bairwa and Indu Chopra

Abstract:
Bifenthrin was applied at two different doses (recommended and double the recommended dose) to study its kinetics and dissipation behavior in coarse textured soils like sandy loam and sandy soils under laboratory conditions. Samples were collected at regular time intervals after application and analyzed by gas chromatography equipped with electron capture detector. From the results of the study, it was found that bifenthrin residues applied at double dose persisted for more than 50 days in both the soils. Dissipation of the bifenthrin was very rapidly, which led to less persistence of the insecticides at single dose. The soils showed monophasic and biphasic mode of bifenthrin dissipation in sandy loam and sandy soils, respectively. Higher dissipation of bifenthrin in coarse-textured soils like sandy loam and sandy soils than fine textured soils is due to less adsorption on the soil surface.